Problem: Saying Merry Christmas vs Happy Holidays. Secularists and atheists argue separation of church and state, and the possibility of offending someone who is not a "believer."
Oh irony you bitter sweet triumph.
The origin of the word HOLIDAY:

Middle English, from Old English h&#257;ligdæg ; 'holy day'.

So, holiday stems from "Holy Day."
Not a Pagan myself but the practice of burning a yuppie in a wicker basket deserves some thought.